Think this went a bit unnoticed in the community ports of the Sonic 1 2 And CD Decompilations For Wii U + Sonic 1 Forever And Sonic 2 Absolute Mods : r/WiiUHacks

Sonic 1, Sonic 2, and Sonic CD Ports on Retro Handhelds – Retro Game Corps

Think this went a bit unnoticed in the community ports of the Sonic 1 2 And CD Decompilations For Wii U + Sonic 1 Forever And Sonic 2 Absolute Mods : r/ WiiUHacks

The Android versions of Sonic 1 & 2 have been decompiled and can be played on PC, Page 4

CONFIRMED: Over 10 Sonic Games Being REMOVED By SEGA. Remasters On The Way? #Delistpocalypse

Porting Sonic CD (2011) to the Wii U – Clownacy's Corner

GitHub - SonicMastr/Sonic-1-2-Vita: Sonic 1/2 (2013) Decompilation

Remade Instruction Screen [Sonic CD (2011)] [Mods]

Sonic mania port to wii u - The Independent Video Game Community

Sonic CD, SF08's Unused Hub Wiki

Super Sonic (lost build of cancelled Sega CD port of Sega Genesis platformer Sonic the Hedgehog 2; existence unconfirmed; 1992-1993) - The Lost Media Wiki

The mobile ports of Sonic The Hedgehog 1 and 2 have been decompiled : r /Games

The Android versions of Sonic 1 & 2 have been decompiled and can be played on PC, Page 4

A Quest for the Secret Origins of Lost Video-Game Levels - The Atlantic

YOU won't BELIEVE how I BROKE Sonic.Executable.Port THE Executed Genesis! ( Sonic.exe was not happy!)

Sonic CD + 1 + 2 Decomps for Wii U - The Independent Video Game Community